condition mean min max ZT0-3 35.170024999999995 34.4965 35.84355 ZT4-7 21.773650000000004 21.773650000000004 21.773650000000004 ZT8-11 24.2354 24.2354 24.2354 ZT12-15 0 0 0 ZT16-19 33.8217 33.8217 33.8217 ZT20-23 34.592299999999994 34.592299999999994 34.592299999999994